const reducer = (
    prevState={
        isCollapsed:false
    },action)=>{
            // console.log(action)
        let {type} =action
    
        switch(type){
            case "change_collapsed":
                let newstate = {...prevState}
                newstate.isCollapsed = !newstate.isCollapsed
                return newstate
            default:
                return prevState
        }
}
export default reducer